Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Non-linear stationary spin-waves in superfluid He-3-B at ultra-low temperatures
AU - Chen, A. S.
AU - Bunkov, Yuri M.
AU - Godfrin, H.
AU - Schanen, Roch
AU - Scheffler, F.
PY - 1998/12
Y1 - 1998/12
N2 - We have performed detailed CW NMR measurements on superfluid He-3-B in order to investigate stationary spin-wave modes in a texture veil. Our results at high temperatures are consistent with previous work. However, we find that the spin dynamics is profoundly modified, even for small excitation amplitudes, for temperatures on the order of 200 mu K, substantially lower than the limit reached in previous investigations. We report the observation of nea-linear spin-waves at ultra-low temperatures and their characterization in terms of a third-order anharmonic oscillator.
AB - We have performed detailed CW NMR measurements on superfluid He-3-B in order to investigate stationary spin-wave modes in a texture veil. Our results at high temperatures are consistent with previous work. However, we find that the spin dynamics is profoundly modified, even for small excitation amplitudes, for temperatures on the order of 200 mu K, substantially lower than the limit reached in previous investigations. We report the observation of nea-linear spin-waves at ultra-low temperatures and their characterization in terms of a third-order anharmonic oscillator.
KW - PRECESSION
U2 - 10.1023/A:1022501411081
DO - 10.1023/A:1022501411081
M3 - Journal article
VL - 113
SP - 693
EP - 698
JO - Journal of Low Temperature Physics
JF - Journal of Low Temperature Physics
SN - 0022-2291
IS - 5-6
T2 - International Symposium on Quantum Fluids and Solids (QFS98)
Y2 - 9 June 1998 through 14 June 1998
ER -